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JEE Main 2019 (Online) 10th January Evening Slot

Exam Held on Thu Jan 10 2019 09:30:00 GMT+0000 (Coordinated Universal Time)
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Chemistry

A reaction of cobalt (III) chloride and ethylenediamine in a 1 : 2 mole ratio ge...
The pair that contains two P – H bonds in each of the oxoacids is
In the reaction of oxalate with permanganate in acidic medium, the number of ele...
The reaction that is NOT involved in the ozone layer depletion mechanism in the ...
The electrolytes usually used in the electroplating of gold and silver, respecti...
Among the following reactions of hydrogen with halogens, the one that requires a...
A compound of formula A<sub>2</sub>B<sub>3</sub> has the hcp lattice. Which atom...
Which of the following tests cannot be used for identifying amino acids?
Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to ...
The ground state energy of hydrogen atom is – 13.6 eV. The energy of second exci...
The difference in the number of unpaired electrons of a metal ion in its high sp...
The 71<sup>st</sup> electron of an element X with an atomic number of 71 enters ...
In the cell <br><br>Pt$$\left| {\left( s \right)} \right|$$H<sub>2</sub>(g, 1 ...
The process with negative entropy change is
The amount of sugar (C<sub>12</sub>H<sub>22</sub>O<sub>11</sub>) required to pre...
Elevation in the boiling point for 1 molar solution of glucose is 2 K. The depre...
An ideal gas undergoes isothermal compression from 5m<sup>3</sup> to 1 m<sup>3</...
The number of 2-centre-2-electron and 3-centre -2-electron bonds in B<sub>2</sub...
The correct match between item 'I' and item 'II' is : <br><br><style type="text...
Haemoglobin and gold sol are examples of :
5.1 g NH<sub>4</sub>SH is introduced in 3.0 L evacuated flask at 327ºC. 30% of t...
An aromatic compound 'A' having molecular formula C<sub>7</sub>H<sub>6</sub>O<su...
The major product of the following reaction is <br><br><img src="https://imagex...
For an elementary chemical reaction, <br><br><img src="https://imagex.cdn.examg...
What is the IUPAC name of the following compound ? <br><br><img src="https://im...
What will be the major product in the following mononitration reaction ? <br><b...
The major product of the following reaction is : <br><br><img src="https://image...
The major product obtained in the following reaction is : <br><br><img src="htt...
Which is the most suitable reagent for the following transformation ? <br><br><i...
The major product of the following reaction <br><br><img src="https://imagex.cdn...

Mathematics

Let N be the set of natural numbers and two functions f and g be defined as f, g...
The length of the chord of the parabola x<sup>2</sup> $$=$$ 4y having equation x...
Two sides of a parallelogram are along the lines, x + y = 3 &amp; x – y + 3 = 0....
If mean and standard deviation of 5 observations x<sub>1</sub>, x<sub>2</sub>, x...
The value of $$\cot \left( {\sum\limits_{n = 1}^{19} {{{\cot }^{ - 1}}} \left( {...
The value of $$\cos {\pi \over {{2^2}}}.\cos {\pi \over {{2^3}}}\,.....\cos {\...
Let a<sub>1</sub>, a<sub>2</sub>, a<sub>3</sub>, ..... a<sub>10</sub> be in G.P....
If&nbsp;&nbsp;$$\sum\limits_{r = 0}^{25} {\left\{ {{}^{50}{C_r}.{}^{50 - r}{C_{2...
If the probability of hitting a target by a shooter, in any shot, is $${1 \over ...
Two vertices of a triangle are (0, 2) and (4, 3). If its orthocenter is at the o...
The tangent to the curve, y = xe<sup>x<sup>2</sup></sup> passing through the poi...
The value of &nbsp;&nbsp;$$\int\limits_{ - \pi /2}^{\pi /2} {{{dx} \over {\left[...
Let S = $$\left\{ {\left( {x,y} \right) \in {R^2}:{{{y^2}} \over {1 + r}} - {{{x...
If&nbsp;&nbsp;$$\int\limits_0^x \, $$f(t) dt = x<sup>2</sup> + $$\int\limits_x^1...
Let A = $$\left[ {\matrix{ 2 &amp; b &amp; 1 \cr b &amp; {{b^2} + 1} &am...
With the usual notation, in $$\Delta $$ABC, if $$\angle A + \angle B$$ = 120<su...
On which of the following lines lies the point of intersection of the line,&nbsp...
The value of $$\lambda $$ such that sum of the squares of the roots of the quadr...
The positive value of $$\lambda $$ for which the co-efficient of x<sup>2</sup> ...
Let $$z = {\left( {{{\sqrt 3 } \over 2} + {i \over 2}} \right)^5} + {\left( {{{\...
The curve amongst the family of curves represented by the differential equation,...
The number of values of $$\theta $$ $$ \in $$ (0, $$\pi $$) for which the system...
Let f : ($$-$$1, 1) $$ \to $$ R be a function defined by f(x) = max $$\left\{ { ...
Let f be a differentiable function such that f '(x) = 7 - $${3 \over 4}{{f\left(...
Consider the following three statements : <br><br>P : 5 is a prime number <br><b...
If $$\overrightarrow \alpha $$ = $$\left( {\lambda - 2} \right)\overrightarrow...
The plane which bisects the line segment joining the points (–3, –3, 4) and (3, ...
If &nbsp;$$\int \, $$x<sup>5</sup>.e<sup>$$-$$4x<sup>3</sup></sup> dx = $${1 \ov...
If the area of an equilateral triangle inscribed in the circle x<sup>2</sup> + y...
A helicopter is flying along the curve given by y – x<sup>3/2</sup> = 7, (x $$ \...

Physics

A closed organ pipe has a fundamental frequency of 1.5 kHz. The number of overto...
A metal plate of area 1 $$ \times $$ 10<sup>–4</sup> m<sup>2</sup> is illuminate...
Four equal point charges Q each are placed in the xy plane at (0, 2), (4, 2), (4...
Consider the nuclear fission <br><br>Ne<sup>20</sup> $$ \to $$&nbsp;2He<sup>4</s...
Two vectors $$\overrightarrow A $$ and $$\overrightarrow B $$ have equal magnitu...
The diameter and height of a cylinder are measured by a meter scale to be 12.6 $...
Two stars of masses 3 $$ \times $$ 10<sup>31</sup> kg each, and at distance 2 $$...
At some location on earth the horizontal component of earth’s magnetic field is ...
The self induced emf of a coil is 25 volts. When the current in it is changed at...
A current of 2 mA was passed through an unknown resistor which dissipated a powe...
The electric field of a plane polarized electromagnetic wave in free space at ti...
The modulation frequency of an AM radio station is 250 kHz, which is 10% of the ...
Half mole of an ideal monoatomic gas is heated at constant pressure of 1 atm fro...
Two kg of a monoatomic gas is at a pressure of 4 $$ \times $$ 10<sup>4</sup> N/m...
Two forces P and Q, of magnitude 2F and 3F, respectively, are at an angle $$\the...
A cylindrical plastic bottle of negligible mass is filled with 310 ml of water a...
A hoop and a solid cylinder of same mass and radius are made of a permanent magn...
A particle which is experiencing a force, given by $$\overrightarrow F = 3\wide...
The eye can be regarded as a single refracting surface. The radius of curvature ...
An unknown metal of mass 192 g heated to a temperature of 100<sup>o</sup>C was i...
A particle executes simple harmonic motion with an amplitude of 5 cm. When the p...
A parallel plate capacitor having capacitance 12 pF is charged by a battery to a...
For the circuit shown below, the current through the Zener diode is - <br><br><i...
A rigid massless rod of length 3l has two masses attached at each end as shown i...
Consider a Young’s double slit experiment as shown in figure. What should be the...
Charges –q and +q located at A and B, respectively, constitude an electric dipol...
A particle starts from the origin at time t = 0 and moves along the positive x-a...
The Wheatstone bridge shown in figure, here, gets balanced when the carbon resis...
Two identical spherical balls of mass M and radius R each are stuck on two ends ...
The actual value of resistance R, shown in the figure is 30$$\Omega $$. This is ...

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